Joints

Main article: Human body

Knee joint

The knee joint connects the femur, tibia and patella.

{{# https://www.tadviser.ru/images/3/3a/Video (73).mp4|100%|auto||A visual demonstration of why we need kneecaps}}

The knee joint also includes a joint cavity that is hermetically surrounded by a joint bag. And the reduced pressure inside the joint bag allows you to maintain the bone in a closed position.

Meniscus is a cartilaginous gasket that acts as a shock absorber in the joint, as well as stabilizing the knee joint.

When moving in the knee joint, the menisci contract, their shape changes.

Meniscus rupture

Shoulder joint

The shoulder joint is a typical example of a spherical joint - one of the articular surfaces is represented by a convex spherical head, and the other, respectively, a concave joint cavity.

The spherical joint is the most mobile of all joints, movement in it can occur around many axes.

Temporomandibular joint

The unique formation of the temporomandibular joint is the intra-articular disk, which, merging with the joint capsule, separates the cavity of the articular capsule into two separate sections and ensures accurate sliding of the bones along each other.

Ankle joint

The ankle joint is the most sensitive and important mechanism in the anatomy and structure of the foot, which consists of bone muscle and tendon formations, with their joint established work it is possible to move the foot, maintain balance and stability in an upright position.

Main article: Flat feet

Brush

Due to the fact that there are many bones and they are small, the brush has such plasticity and mobility, but because of this, with injuries, the performance of the hand is noticeably reduced.

Wrist cut

Crunch of nitrogen bubbles in joints

What can crunch when you bend your knees, especially when you do a charge?

Perhaps the best explanation for this phenomenon is the theory associated with air pressure and nitrogen. All your joints contain air and fluid.

Nitrogen is a major component of both air and joint fluid. When you get up (or make other movements), the pressure in the joint changes and nitrogen forms tiny bubbles.

Sometimes there is enough earthly attraction for these bubbles to form. Crunch is the sound of a bubble moving.

For example, when you rise in the morning from a bed in which you lay all night, nitrogen and air move, reacting to gravity.

Joint Treatment Technologies

2024: Implant released that restores meniscus 5 times faster than usual treatment

In mid-October 2024, Regenity Biosciences received approval to sell a RejuvaKnee implant to treat soft tissue injuries and the meniscus of the knee. Minimally invasive collagen-meniscus implant promotes meniscus strengthening and repair in case of its injuries. According to the developers, RejuvaKnee provides more complete recovery, promoting the regeneration of its own meniscus tissue, as opposed to standard surgery with replacement of damaged tissues. It is known that meniscectomy can provide high short-term rates of clinical success, but often results in repeated meniscectomy or predisposes to osteoarthritis, unlike RejuvaKnee, which extends the life of the injured knee. Read more here.

2022: A device that relieves joint pain entered the market

On October 16, 2022, the Kineon Move + device was released, which relieves joint pain using medical laser technology by stimulating the natural healing processes of the body. Read more here.